16793440405 has 16 divisors (see below), whose sum is σ = 23322539520. Its totient is φ = 11369734272.

The previous prime is 16793440393. The next prime is 16793440423. The reversal of 16793440405 is 50404439761.

It is a cyclic number.

It is not a de Polignac number, because 16793440405 - 2¹³ = 16793432213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3034024 + ... + 3039553.

It is an arithmetic number, because the mean of its divisors is an integer number (1457658720).

Almost surely, 2^16793440405 is an apocalyptic number.

It is an amenable number.

16793440405 is a deficient number, since it is larger than the sum of its proper divisors (6529099115).

16793440405 is an equidigital number, since it uses as much as digits as its factorization.

16793440405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6073668.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 16793440405 in words is "sixteen billion, seven hundred ninety-three million, four hundred forty thousand, four hundred five".